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sum(null matrix) becomes null matrix not zero

From: che6yoh
Subject: sum(null matrix) becomes null matrix not zero
Date: Thu, 27 May 93 14:11:45 BST

Dear Sirs,

I am very sorry to trouble often.

If I execute 
The result becomes b=[].
Is this specification of octave?
I expected b became zero like MATLAB.

I sent two other mails to address@hidden already.

1. The results of expm are strange.
   Does the problem occure only on my system?

2. Is there any way to execute external programs from octave?

3. Is there any way to get ASCII code of each character in a

I am looking forward to getting reply from you.

Yoshihiro Hashimoto
Dept. of Systems Eng., Nagoya Inst. of Tech.
[Now]Dept. of Chem. Eng., The Univ. of Leeds
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